Hello,

My intention to post this question was to makes things clear.

I do agree 0-25 is correct Answer.

At the time of posting question I have executed

select * from sysmessages where severity = 25 in sql server 2000 and sql server 2008 (sys.messages) and found that there are 3 entry in sql server 2000 and no entry in 2008. Hence opted for 0-24.

Also ambiguity in BOL make me confused.

I thank you all of you for clarifying the same.

Appology for not scoring a point for correct answer. :pinch: